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PRELUBE Phase -> Pre Lubrication that occurs during power up of a system.
LUBRICATION Phase (Lube –> Wait stages)
-> This is when lubricant is provided (as above)
STANDBY Phase -> The system is inactive awaiting for the next LUBRICATION PHASE
Additionally, the VIP5 Pro Atex Control system can also be used as a simple monitoring device in the “FLOW” operating
Mode described later in this manual.
5.1.1 PRELUBE Phase
The user can specify the number of lubrication cycles up to a maximum of 250.
If Prelube is set to zero, the
VIP5 Pro controller
controller will not perform any pre-lubrication; in this case if the START
parameter setting is "Resume", when the system is turned on it will revert to its pre-power down, or it will start from a
lubrication cycle if the setting of the start is "Lube".
When Prelube is set greater than zero, pre-lubrication will start in the following cases:
-
When the
VIP5 Pro controller
system is powered on;
-
After the RESET button is pressed;
-
After the
VIP5 Pro controller
exists from the SETUP menu.
5.1.2 LUBE (Lubrication) Phase
The Lubrication Phase is a set of Lubrication Cycles that can be repeated up to 250 times.
A Lubrication
Cycle
consists of activating the lubrication pump, then
Control
monitoring a feedback signal from a sensing
device if installed. There is then
Delay
period before switching off the pump, and a
Wait
period before the lubrication cycle
can be repeated. Specifically:
-
Cycle
(time) determine how long to wait for the control signal before determining an alarm condition.
-
Control
(Type) determines what kind of control signal (Single Line, Dual Line, Injectors). Alternatively a Timer only
setting means no monitoring will occur.
-
Delay
(time): Is how long to wait for the signal to be confirmed and switch off the pump (in Pressure switch
applications).
-
Wait
(time): determines how long to wait in a pump off condition before repeating the cycle. This is necessary in
injector systems and represents the minimum time required for the injectors to reset. In progressive systems for
example this can be set to zero.
5.1.3 STANDBY Phase
During the
Standby
the VIP5 Pro Atex switches off the pump and waits for the start of another
Lubrication Phase
. The
duration of the
Standby
phase can be determined by a countdown timer or a by an external pulse signal that can be used
as a counter. The
VIP5 Pro controller
also allows a combination of both timer and external pulse signals to determine
either the next Lubrication phase or to signal an alarm if external pulse signals are not received within a pre-set time.
5.2 FLOW MODE OPERATING PRINCIPLES
The
VIP5 Pro controller
can also be used as a simple Flow monitoring system. When
Flow
mode is selected the unit
operates as a flow display and monitors an external signal to calculate the flow based on external impulses. The User can
additionally set a minimum and maximum Flow limit. If the flow is out of these limits, the remote alarm contact and the
alarm LED on the front panel are both activated.
